Troubleshooting for SA Indoor Unit SiBE121123_A
169 Service Diagnosis
6. Troubleshooting for SA Indoor Unit
6.1 Indoor Unit PCB Abnormality
Error Code
A1
Method of Error
Detection
The system checks the data from EEPROM.
Error Decision
Conditions
When data could not be correctly received from the EEPROM
EEPROM : Type of nonvolatile memory. Maintains memory contents even when the power
supply is turned off.
Supposed
Causes
External factor (noise etc.)
Defective indoor unit PCB
Troubleshooting
YES
NO
Could be other causes
(noise, etc.) than
malfunction.
Replace the indoor unit
PCB.
(R15319)
Turn the power supply off
once and then back on.
Return to normal?
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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